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Finding the Fourth Proportional to 15,940.60, 23,910.90 and 6,080.20

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Solution

The fourth proportional to 15,940.60, 23,910.90 and 6,080.20 is: 9,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.60 : 23,910.90 = 6,080.20 : x
  2. Step 2: Convert to fraction form
    15,940.60/23,910.90 = 6,080.20/x
  3. Step 3: Cross multiply
    15,940.60x = 23,910.90 × 6,080.20
  4. Step 4: Simplify right side
    15,940.60x = 145,383,054.18
  5. Step 5: Solve for x
    x = 145,383,054.18/15,940.60
  6. Step 6: Final answer
    x = 9,120.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.